Sun, 09 Feb 2014 21:37:27 +0100 haftmann restoring ancient string_classes option
Sun, 09 Feb 2014 21:37:27 +0100 haftmann method names in instance declarations are always unqualified
Sun, 09 Feb 2014 21:37:27 +0100 haftmann dropped legacy finally
Sun, 09 Feb 2014 19:10:12 +0000 paulson tidied messy proofs
Sun, 09 Feb 2014 17:47:23 +0100 wenzelm minimal document;
Sun, 09 Feb 2014 17:41:17 +0100 wenzelm removed junk;
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